ECON 338/ENVR 305 CLICKER QUESTIONS Statistics – Question Set #2 (from Chapter2)

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ECON 338/ENVR 305 CLICKER QUESTIONS Statistics – Question Set #2 (from Chapter2)

Based on the empirical rule for bell-shaped distributions, about _____ % of the data lie within 1 standard deviation of the mean Response Counter

The mean and standard deviation of the scores obtained by students in a class of 20 are µ= 75 and σ = 3.4. The z-score of one of the students is z = What is his score? Response Counter

Chebyshev’s Theorem states that for any numerical data set, at least _____ of the data lie within 2 standard deviations of the mean. 1. ¾ 2. ½ 3. 8/9 4. 2/5 5. 1/4 Response Counter

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